Home / 841,880.87-1,263,319.52-309,775.56

Finding the Fourth Proportional to 841,880.87, 1,263,319.52 and 309,775.56

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Solution

The fourth proportional to 841,880.87, 1,263,319.52 and 309,775.56 is: 464,846.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,880.87 : 1,263,319.52 = 309,775.56 : x
  2. Step 2: Convert to fraction form
    841,880.87/1,263,319.52 = 309,775.56/x
  3. Step 3: Cross multiply
    841,880.87x = 1,263,319.52 × 309,775.56
  4. Step 4: Simplify right side
    841,880.87x = 391,345,510,218.05
  5. Step 5: Solve for x
    x = 391,345,510,218.05/841,880.87
  6. Step 6: Final answer
    x = 464,846.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.